package net.xdclass.controller;


import com.google.code.kaptcha.Producer;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import net.xdclass.enums.BizCodeEnum;
import net.xdclass.enums.SendCodeEnum;
import net.xdclass.NotifyService;
import net.xdclass.util.CommonUtil;
import net.xdclass.util.JsonData;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.web.bind.annotation.*;

import javax.imageio.ImageIO;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.concurrent.TimeUnit;

/**
 * <p>
 * 电商-公司收发货地址表 前端控制器
 * </p>
 *
 * @author
 * @since
 */
@Api(tags = "根据地址查找")
@RestController
@RequestMapping("/api/user/v1")
@Slf4j
public class NotifyController {

    @Autowired
    private Producer captchaProducer;

    @Autowired
    private RedisTemplate redisTemplate;

    @Autowired
    private StringRedisTemplate stringRedisTemplate;

    @Autowired
    private NotifyService notifyService;

    /**
     * 图形验证码有效期10分钟
     */
    private static final long CAPTCHA_CODE_EXPIRED = 60 * 1000 * 10;

    /**
     * 获取图形验证码
     *
     * @param request
     * @param response
     */
    @ApiOperation("获取图形验证码")
    @GetMapping("captcha")
    public void getCaptcha(HttpServletRequest request, HttpServletResponse response) {

        String captchaText = captchaProducer.createText();
        log.info("图形验证码:{}", captchaText);

        //存储
        redisTemplate.opsForValue().set(getCaptchaKey(request), captchaText, CAPTCHA_CODE_EXPIRED, TimeUnit.MILLISECONDS);

        BufferedImage bufferedImage = captchaProducer.createImage(captchaText);
        ServletOutputStream outputStream = null;
        try {
            outputStream = response.getOutputStream();
            ImageIO.write(bufferedImage, "jpg", outputStream);
            outputStream.flush();
            outputStream.close();
        } catch (IOException e) {
            log.error("获取图形验证码异常:{}", e);
        }
    }

    /**
     * 发送验证码
     * 1、匹配图形验证码是否正常
     * 2、发送验证码
     *
     * @param to
     * @param captcha
     * @return
     */
    public JsonData sendRegisterCode(@RequestParam(value = "to", required = true) String to,
                                     @RequestParam(value = "captcha", required = true) String captcha,
                                     HttpServletRequest request) {

        String key = getCaptchaKey(request);
        String cacheCaptcha = stringRedisTemplate.opsForValue().get(key);

        if (captcha != null && cacheCaptcha != null && captcha.equalsIgnoreCase(cacheCaptcha)) {

            //成功
            stringRedisTemplate.delete(key);
            JsonData jsonData=notifyService.sendCode(SendCodeEnum.USER_REGISTER,to);
        }

        return JsonData.buildResult(BizCodeEnum.CODE_CAPTCHA_ERROR);
    }

    /**
     * 获取缓存的key
     *
     * @param request
     * @return
     */
    public String getCaptchaKey(HttpServletRequest request) {

        //获取ip
        String ip = CommonUtil.getIpAddr(request);
        String userAgent = request.getHeader("User-Agent");
        String key = "user-service:captcha:" + CommonUtil.MD5(ip + userAgent);

        log.info("ip={}", ip);
        log.info("userAgent={}", userAgent);
        log.info("key={}", key);
        return key;
    }
}

